English textbooks

What is hypothyroidism in a child? Hypothyroidism is when the thyroid gland doesn’t make enough thyroid hormone. The condition is more common in adults. But it’s the most common thyroid disorder in children. Not enough thyroid hormone leads to signs, such…

What is acromegaly? When your pituitary gland makes too much growth hormone, abnormal growth occurs. This is called acromegaly. The abnormal growth starts in your hands, face, and feet, as soft tissue begins to swell. This rare disease affects mostly middle-aged adults. It…

Does this test have other names? Adrenocorticotropic hormone blood test, corticotropin What is this test? This is a blood test that measures the amount of adrenocorticotropic hormone (ACTH) the pituitary gland produces. This gland is a tiny organ that sits…

Does this test have other names? ACT, activated clotting time What is this test? This test measures how long it takes your blood to clot. It’s often used to check how well a medicine called heparin is working. Heparin slows…

Does this test have other names? Intrinsic pathway coagulation factor profile, aPTT, partial thromboplastin time, PTT, blood coagulation tests  What is this test? The aPTT is 1 of several blood coagulation tests. It measures how long it takes your blood…

What is acupuncture? Acupuncture is part of the ancient practice of Traditional Chinese medicine (TCM). TCM is a system of healthcare that has evolved over thousands of years to prevent, diagnose, and treat disease. TCM believes that the body’s vital…

What is acute bacterial rhinosinusitis? Acute bacterial rhinosinusitis (ABRS) is an infection of both your nasal cavity and sinuses. It is caused by bacteria. The nasal cavity is the large air-filled space behind your nose. The sinuses are a group…

What is acute bronchitis? Bronchitis is inflammation of the breathing tubes. These airways are called bronchi. This inflammation causes increased mucus production and other changes. There are several different types of bronchitis. But the most common are acute and chronic. Acute…

What is acute bronchitis in children? Bronchitis is an inflammation of the large breathing tubes (bronchi) in the lungs. The illness can be short-term (acute) or long-term (chronic). Acute bronchitis means that the symptoms often develop quickly and don’t last…

What is acute flaccid myelitis (AFM) in children? AFM is a rare condition that affects the nervous system. It damages the spinal cord, leading to muscle weakness and reflex problems. Its symptoms start suddenly and may cause paralysis in the…

What is acute liver failure? Acute liver failure is a rare condition. It happens when your liver suddenly starts to not work. This often happens right after an overdose of medicine or poisoning. Chronic liver failure happens over a long…

What are the symptoms of acute myeloid leukemia (AML)? Symptoms of AML can be different in each person. The most common symptoms include:               Bleeding that’s hard to stop Easy bruising Fever  …